Piper Dakota Maintenance Manual page 460

GENERAL
This chapter covers the power plant used in PA-28-236 airplanes, and is compnsed of instructions for
removal and installation.
For further instructions and for major repairs, consult appropriate publication of engine or component
manufacturer.
DESCRIPTION
The PA-28-236 is powered by an Av c o - Lycoming 235 horsepower engine. (Refer to Power Plant
Specifications in chapter 6.) The engines are 540 cubic inch, six cylinder, wet sump, horizontally opposed,
direct drive, and air-cooled. The cylinders are not directly opposed from each other but are staggered, thus
permitting a separate throw on the crankshaft for each connecting rod.
The cylinders are of conventional air-cooled design with two major parts, head and barrel, screwed and
shrunk together. The heads are made from an aluminum alloy casting with a fully machined combustion
chamber. The cylinder barrel, which is machined from a chrome nickel molybdenum steel forging with deep
integral cooling fins, is ground and honed to a specified finish. Standard engines are furnished with unplated
cylinder barrels and chrome plated piston rings. Engines manufactured with optional chrome plated barrels
require unplated piston rings.
TROUBLESHOOTING
Troubles peculiar to the power plant are listed in Chart 7101, along with their probable causes and
suggested remedies.
Always ground magneto primary circuits before performing any
engine checks.
PIPER AIRCRAFT
PA-28-236
MAINTENANCE MANUAL
—WARNING—
2H16
71 - 02 - 00
Page - 71-01
Reissued: August 1, 1986